Ore-sampler.



No. 782,235 PATENTED FEB. 14, 1905. A. G. GULLBERG.

ORE SAMPLER.

APPLICATION FILED OUT. 10. 1904.

2 SHEETSSHEET 1.

l1 I2 15 Kg,

3 Erg E- g z 61mm,

No. 782,235. PATENTBD FEB. 14, 1905. A. G. GULLBERG.

ORE SAMPLER.

APPLICATION FILED our 10. 1904.

2 SHEETS-SHEET 2.

UNITED STATES Patented February 14, 1905.

PATENT EEicE.

ANDREXV G. GULLBERG, OF NEiV YORK, N. Y., ASSIGNOR OF ONEHALF TO FRANKKLEPETKO, OF NEW YORK, N. Y. I

ORE-SAMPLER.

SPECIFICATION forming part of Letters Patent No. 782,235, dated February14, 1905.

Application tiled October 10,1904. Serial No. 227,892.

To a, 'IIl/Mflll/ it 71mg concern:

Be it known that '1, ANDREW (Jr. GULLBERG, a citizen of the UnitedStates, residing at New York, in the county of New York and State of NewYork, have invented certain new and useful improvements in Ore-Samplers,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in automatic ore-samplers; andit consists in the novel construction and combination of parts morefully set forth in the specification, and pointed out in the claims.

In the drawings, Figure 1 is a combined section and side elevation ofthe machine, showing the sample-hopper in its central position, thesection being taken on line 1 1 of Fig. 2. Fig. 2 is a top plan of themachine. Fig. 3 is a vertical transverse section on the line 3 3 ofFig. 1. Fig. 4 is a vertical sectional elevation showing thesample-hopper in one of its extreme positions. Fig. 5 is a similar viewshowing the sample-hopper in the opposite extreme position. Fig. 6 is asectional detail on line 6 6 of Fig. 2, showing the relation between theinner roller of the disk wheel and the cam or tappet actuated thereby.Fig. 7 is a similar view showing the outer roller in contact with saidtappet; and Fig. 8 is a sectional detail on the line 8 8 of Fig. 1,showing manner of mounting the tripping-roller on the disk wheel.

The object of my invention is to construct an automatic ore-samplercapable of abstracting a sample ranging from five to fifty per cent,according to the adjustment of the parts directly controlling the samplehopper or cutter, onein which the cutter at all times takes the wholestream of ore as it is delivered to the sampler, one in which the cutterremains positively locked during the time a sample is taken, one inwhich the position of the cutter from the sampling to the discardingposition is changed instantly and positively by mechanism which issimple and durable, and one possessing further and other advantagesbetter apparent from a detailed description of the invention, which isas follows:

.bers.

Referring to the drawings, 1 represents the 5 main supporting-timbers ofthe machine. To these are bolted the standards 2 2, which serve tosupport the feed-hopper 3, whose mouth is directly beneath theelevator-spout 4, from which the ore (or other material) is delivered.

Suspended from suitable trunnions or trunnion-shaft 5, mounted inbearings 6 on the timbers at the base of the standards 2 2, is theoscillating sample hopper or cutter 7, which for one of its extremepositions delivers the ore to the discard-chute 8 and in the otherextreme position to the sample-chute 9 of the re ceiving-hopper 10,carried by the timbers 1 1.

Keyed to one end of the trunnion-shaft 5 is one end of a crank-arm 11,whose opposite end is pivotally coupled to the adjacent end of a link12, which in turn is connected pivotally to the end of the long arm of alock-lever 13, keyed on the operating-shaft 1%. The operating-shaft ismounted in two cast-iron bearing-sections 15 15, supported by the maintim- The shaft 14 and lock-lever are connected with the parallel rockshaft 16 by means of the eccentric 17, keyed to the latter at one endthereof, said rock-shaft (or eccentric-shaft) being likewise mounted insimilar bearing-sections 15. To the opposite end of the eccentric-shaftis keyed the cam or tappet 18. Mounted on the main drive-shaft 19, (likewise carried in bearing-sections 15,) on the end adjacent the cam 18 isthe disk wheel 20, which at a certain radial distance from the centerthereof is provided with an inner striking or tripping impact-roller 21.and at a greater radial distance with an outer strikingroller 21, therebeing nineteen holes or sockets 22, disposed along the disk adjacent tothe periphery thereof, for receiving the stud 23 of the outer impact ortripping roller 21. The stud is held in position by the nut 2*. Theopposite end of the drive-shaft is provided with tight and loose pulleysl P, re spectively. As seen from the drawings, the sockets 22 and theroller .21 are disposed along radii which are eighteen degrees apart,(there being nineteen sockets 22 and one roller 21 between two adjacentsockets, thus making twenty equal divisions for three hundred and sixtydegrees,) so that, as presently to be seen, it is possible to abstractasample ranging from five per cent. to fifty per cent., depending on theposition of the outer roller 21 relatively to the fixed inner roller'21. The percentage just referred to is obvious, since there beingtwenty divisions for the entire circumference of the disk-wheel onedivision would represent five per cent. of said circumference. This willbe better apparent from a description of the operation of the device.which is as follows: Rotation being imparted to the drive-shaft, andconsequently the disk wheel, in the direction shown by the arrows, theinner roller 21 (for example) will strike the adjacent end of the cam ortappet 18, tripping it to the position indicated in Fig. 6 and rockingthe rock-shaft or eccentric-shaft 16 in a direction to bring theeccentric periphery of the eccentric 17 to the position indicated inFig. 4:, (the parts in Figs. 1 and 6 corresponding,) the said eccentricrotating, as indicated by the arrow in Fig. 1, depressing the lowermember of the jaw or fork formed in the lock-lever 18 and oscillatingthe latter away from its vertical position and in a direction as shownin Fig. 1. The intermediate connections thereupon between the lever andcutter 7 rock the latter to the extreme position therein shown, the orethus discharging into the discard-chute 8 of the receiving-hopper 10. Asthe disk wheel 20 continues its rotation in the direction indicated theroller 21 will pass off the cam 18, leaving the parts locked in theposition shown in Fig. 1, the cutter discharging into the discard-chute8 until the opposite end of the cam 18 is struck and tilted by the outerroller 21" to the position indicated in Fig. 7. The eccentric 17 willnow rotate or rock in the opposite direction, forcing the upper memberof the jaw of the lock-lever upward, Fig. 5, when the cutter will beswung to the opposite extreme position, Fig. 5, discharging its contentsinto the sample-chute 9. This will continue until the cam is againstruck bythe inner roller 21, when the parts will resume the positionindicated in Figs. 4 and 6. As shown in the drawings, the rollers 21 21are set eighteen degrees apart, so that the period of discharge into thesample-chute will correspond to one-twentieth of a revolution of thedisk wheel-that is to say, the sample will be a five-per-cent. sample.By shifting the stud 23 to any one of the sockets 22 (the nut 24 beingfirst removed) the are between the radii passing, respectively, throughthe rollers 21 21 may be increased to as much as one hundred and eightydegrees and the sample increased to fifty per cent., as is obvious. The

present machine is constructed to deliver a minimum sample of five percent., the shortest are between the two rollers being eighteen degrees;but it is apparent that this relation may be varied without departingfrom the nature or spirit of my invention. The eccentric 17 when rockedto either one of its extreme positions becomes securely locked to thelocklever 13, and the several parts controlled or actuated by said leverwill remain permanently locked in the position to which they wereactuated until released and actuated in the opposite direction by theaction of the roller next to strike or impinge against the adjacent endof the cam 18. Whatever may be the position of the cutter, however, thestream of ore is constantly passing through it, said stream being firstdelivered to the chute 8 and then the chute 9, as already explained.

The device is of course applicable to other material besides ore.

Having described my invention, what I claim is- 1. vIn an automaticsampler, a suitable oscillating cutter or sample-hopper, an oscillatinglock-lever,intermediate connections between the lever and cutter, andsuitable driving mechanism for actuating the lock-lever and cutter,substantially as set forth.

2. In an automatic sampler, a suitable oscillating cutter orsample-hopper, an oscillating lock-lever, intermediate connectionsbetween the lever and cutter, and suitable driving mechanism foractuating the lock-lever and temporarily locking the same at the end ofits oscillations, substantially as set forth.

3. In an automatic sampler, a suitable oscillating cutter adapted toreceive the material to be sampled, an oscillating lock-lever,intermediate link connections between the lever and suspension axis ofthe cutter, and suitable driving mechanism for actuating the lockleverand temporarily locking the same at the end of its oscillations,substantially as set forth. Y

4:. In an automatic sampler, a suitable oscillating cutter adapted toreceive the material, an oscillating lock-lever, intermediate linkconnections between the lever and suspension axis of the'cutter, arotating disk wheel, an eccentric-shaft adjacent to the wheel, a cam atone end of the shaft, an eccentric at the opposite end cooperativelyconnected to the locklever, and devices on the disk wheel forsuccessively tapping the opposite ends of the cam and rocking theeccentric-shaft, and in turn actuating the lock-lever and cutterconnected thereto, substantially as set forth.

5. In an automatic sampler, a suitable oscillating cutter adapted toreceive the material,

an oscillating lock-lever, intermediate link connections betweenthelever and suspension axis of the cutter, a rotating wheel, aneccentric-shaft adjacent thereto, an eccentric at one end of the shaftcooperatively connected with the lock-lever, the latter having a fork orjaw embracing said eccentric, a cam at the opposite end of said shaft,and projectionson the wheel adapted to be set circumferentially atdifferent distances apart for successively striklIO ing the oppositeends of the cam and rocking the eccentric-shaft and oscillating the locl-le vcr and parts linked thereto, substantially as set forth.

6. In an automatic sampler, a suitable 0scillating cutter adapted toreceive the material, an oscillating lock-lever, intermediate linkconnections between the lever and suspension axis of the cutter, arotating wheel, an eccentric-shaft or rock-shaft adjacent thereto, an

eccentric at one end of the shaft connected co oporatively with thelock-lever, and intermediate connections between the rock-shaft andwheel for rocking the former upon rotation of the wheel, andsimultaneously oscillating the lock-lever and parts linked thereto,substantially as set forth.

7. In an automatic sampler, a wheel having a stationary impact-roller,and an adjustable roller removed radially from the center of the wheel adistance ditl'ercnt from that of the stationary roller,and sockets formounting the adjustable roller at diti'erent distances from thestationary roller, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

ANDRElV (:ir. GULLBERG. \Vitnesses:

D. M. GREGORY, M. A. PES'IANA.

